本文整理汇总了C#中System.Windows.Controls.TreeViewItem.GetVisualChild方法的典型用法代码示例。如果您正苦于以下问题：C# TreeViewItem.GetVisualChild方法的具体用法？C# TreeViewItem.GetVisualChild怎么用？C# TreeViewItem.GetVisualChild使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Controls.TreeViewItem的用法示例。
在下文中一共展示了TreeViewItem.GetVisualChild方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ExpanderButtonFocusActivatesSelection
public virtual void ExpanderButtonFocusActivatesSelection()
{
StackPanel root = new StackPanel();
TreeView view = new TreeView();
TreeViewItem item = new TreeViewItem { Header = "Item" };
Button button = new Button { Content = "Button" };
view.Items.Add(item);
root.Children.Add(view);
root.Children.Add(button);
ToggleButton ExpanderButton = null;
TestAsync(
5,
root,
() => item.Focus(),
() => Assert.IsTrue(item.IsSelected, "Item should be selected!"),
() => Assert.IsTrue(item.IsSelectionActive, "Selection should be active after focusing!"),
() => button.Focus(),
() => Assert.IsFalse(item.IsSelectionActive, "Selection should be inactive after focusing on something else!"),
() => ExpanderButton = item.GetVisualChild("ExpanderButton") as ToggleButton,
() => Assert.IsNotNull(ExpanderButton, "Failed to find template part ExpanderButton!"),
() => ExpanderButton.Focus(),
() => Assert.IsTrue(item.IsSelectionActive, "Selection should be active after focusing ExpanderButton!"));
}示例2: ExpanderButtonClickTogglesIsExpanded
public virtual void ExpanderButtonClickTogglesIsExpanded()
{
TreeView view = new TreeView();
TreeViewItem item = new TreeViewItem { Header = "Item", IsExpanded = true };
TreeViewItem child = new TreeViewItem { Header = "Child" };
view.Items.Add(item);
item.Items.Add(child);
ToggleButton ExpanderButton = null;
AutomationPeer peer = null;
IToggleProvider provider = null;
TestAsync(
5,
view,
() => ExpanderButton = item.GetVisualChild("ExpanderButton") as ToggleButton,
() => Assert.IsNotNull(ExpanderButton, "Failed to find template part ExpanderButton!"),
() => peer = FrameworkElementAutomationPeer.CreatePeerForElement(ExpanderButton),
() => provider = peer.GetPattern(PatternInterface.Toggle) as IToggleProvider,
() => Assert.IsNotNull(provider, "IToggleProvider should not be null!"),
() => provider.Toggle(),
() => Assert.IsFalse(item.IsExpanded, "Item should be collapsed when clicking ExpanderButton!"),
() => provider.Toggle(),
() => Assert.IsTrue(item.IsExpanded, "Item should be expanded when clicking ExpanderButton again!"));
}